Going from b46 to b47 does not require any special migration. The User Library (formerly User File Folder) is an optional setting that that lets you decide where on the file system the sessions and snapshots will be stored. It is recommended that you set this early on so that all the files that get generated go there, but if you are an older user, you can continue to use the default location which is buried under the installation directory.
In effect, there are two places Mobius will look for files, the User Library first, and then the installation directory. If you set the User Library after you've been using the default directory for some time, those older files don't need to be moved, they can continue to exist in their old location, but any new sessions you create will go in the User Library.
At some point I'll provide an automatic file mover that copies all the old files into the User Library so everything is in one place. You can do that manually if you want, but it isn't a pleasant task, and you don't need to. I would just let things continue to exist in the old location and I'll add the migration tool at some point in the future.
Note that this applies only to sessions, snapshots, and scripts. Bindings are not stored in the User Library, they continue to live inside the installation directory.
So basically moving from b46 to b47 doesn't require any work other than just installing it, everything should continue to work as it did before. If you think that isn't the case let me know.
If you do want to move the old files manually, then the process is this....
Locate your installation folder. On Windows this is c:\Users<yourname>\AppData\Local\Circular Labs\Mobius.
On Mac it is /Users/<yourname>/Library/Application Support/Circular Labs/Mobius.
Within the installation folder is a folder named sessions. Inside that is a sub-folder for each session. In this example, let's say your User Library is set to c:\MobiusFiles and there is one old session saved in c:\Users\jeff\AppData\Local\Circular Labs\Mobius\sessions\MySession. Using whatever file mover you want, copy the entire MySession directory from c:\Users... into c:\MobiusFiles\sessions\MySession. Repeat this for any other session folders you have.
Moving scripts is similar, the old location for scripts is c:\Users...\Mobius\scripts and inside that will be a number of .msl and .mos files. Copy all those files into c:\MobiusFiles\scripts.
Once you do that the files will exist in two places, Mobius will always prefer the ones it finds in the User Library, but to avoid confusion I recommend you delete the old ones from the installation directory.
Again, I recommend that people don't try to do this migration manually unless you're very comfortable with moving files around manually. It's error prone if you're not careful. For most people, you can just leave everything alone and wait until I provide an automatic file mover.